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Mh, thanks for the repost. I'm curious if anything has actually improved since 2014? Whats the state of the art on the graphene front?
apparently there is now a phone with graphene in the battery https://blog.mi.com/en/2020/08/11/a-decade-of-innovation-xia...
So is this battery state of the art? If so in what aspects? Charging speed?
> Mi 10 Ultra is also the first to have mass-produced 50W wireless charging, capable of powering the device to 100% in just 40 minutes1, a speed that is equivalent to 50W wired charging. It additionally supports 10W reverse wireless charging.

I think there is some cooling aspect to it as well